We seek to understand and document all radio transmissions, legal and otherwise, as part of the radio listening hobby. We do not encourage any radio operations contrary to regulations. Always consult with the appropriate authorities if you have questions concerning what is permissable in your locale.

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Messages - ~SIGINT~

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631
Peskies / UNID 6960 LSB 0015 01 AUG 2023
« on: August 01, 2023, 0016 UTC »
UNID 6960.0 kHz LSB 00:15 01 AUG 2023

00:15 UTC - UNID Peskie playing music;
00:17 UTC - Turned into a plain Peskie talking away.


RSPduo | Wellbrook loop antenna

632
Radio Romania Int. 15975.0 kHz DRM 20:20 UTC 31 JUL 2023

RRI Galbeni TX1
AAC+ Mono (18.40 kpbs)

16.8 dB SNR with occasional audio decode.

20:20 UTC - RRI (Galbeni) in DRM mode (French schedule);
20:26 UTC - End of broadcast;
20:31 UTC - AM carrier followed by DRM mode (English schedule).


RSPduo | Wellbrook loop antenna | DREAM v2.1.1

633
Utility / Trenton Military General Log
« on: July 31, 2023, 1519 UTC »
Trenton Military General Log: 2023-07-31

311511Z JUL 2023 11232.0 kHz USB
15:11Z ATLAS 340 in sector 10 calling TRENTON MILITARY; no response;
15:12Z ATLAS 340 in sector 10 calling TRENTON MILITARY; no response.

634
HFGCS Force Directional Message (FDM) and Emergency Action Message (EAM) Log

Daily call sign for 31 July 2023: COMPOSER (ground NCS), (airborne CP), (other)

Note: No significant amount of traffic today.

311322Z JUL 2023
TO: ALL STATIONS
FROM: COMPOSER
YTEZJ3 // UI4ZF UKVKU RA4M5 4SQHN G3XR

312321Z JUL 2023
TO: ALL STATIONS
FROM: COMPOSER
F6QIG4 // 6CIZR H7HHQ J6725 5J7EU 7CWJ

312333Z  JUL 2023
TO: ALL STATIONS
FROM: COMPOSER
FOR REGION CHARLIE
F6HNDY // KVIL3 DOQ67 VGYDZ YQHG2 LV2C

312358Z JUL 2023
TO: ALL STATIONS
FROM: COMPOSER
F6JV4W // PAUXY 3IIHV 3EA5O OOYXC OQCJ

635
Quote
Operating in a non-interfering portion of the bands ... I don't think so, at least not in this case.

I just captured this image of an HFT on the back door of DDH 9 (11039 kHz) and who knows what else in between. DDH 9 is still punching through good readable. Both 20 kHz wide data / control HFT channels are clearly visible.


636
00:35 UTC - Weak barely readable with fading.


RSPduo | Wellbrook loop antenna

637
No luck either with decoding the transmission. They are short and most likely just an ID, no message traffic --- but it was fun trying anyways.

This PDF (HF NBDP Database for DXers v1.1) is a nice addition to have.
https://www.ndblist.info/index_htm_files/worldNBDPdatabase.pdf

You can find it at the bottom of the ndblist.info Datamodes Section:
https://www.ndblist.info/datamodes.htm


~SIGINT~

638
UNID 6970.0 kHz USB 23:40 UTC 30 JUL 2023

23:41 UTC - UNID with classical music. Good readable;
00:33 UTC - Slight frequency change then back.


RSPduo | Wellbrook loop antenna

639
23:40 UTC - Weak readable.


RSPduo | Wellbrook loop antenna

640
23:38 UTC - Weak readable and fading.


RSPduo | Wellbrook loop antenna

641
23:37 UTC - Weak readable;
23:38 UTC - Nothing else heard.


RSPduo | Wellbrook loop antenna

642
21:03 UTC - Good readable with music.


RSPduo | Wellbrook loop antenna

643
Peskies / UNID Peskies 16777 USB 2055 UTC 30 JUL 2029
« on: July 30, 2023, 2059 UTC »
UNID Peskies 16777.0 kHz USB 20:55 UTC 30 JUL 2029

20:50 UTC - 2 x UNID Peskies with casual conversation. Language UNID (Spanish). Weak readable.


RSPduo | Wellbrook loop antenna

644
Utility / Re: Beacon SVO 12603.5 CW 0340 UTC 29 JUL 2023
« on: July 30, 2023, 1952 UTC »
19:50 UTC 30 JUL 2023 - Good copy again today. SVO sending CW ID: DE SVO.


RSPduo | Wellbrook loop antenna

645
That is the problem with these digital transmissions. Just like the conversion to over-the-air HDTV, what a few 100 kW and a good antenna previously accomplished in the analog world now requires a 1 Mega Watt emitter in digital / DRM to achieve comparable coverage.

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